This lever switch is based upon the discontinued Mounting Switch previously produced by Don Johnston Developmental Equipment, Inc. It utilizes a microswitch connected to a 3.5 mono plug. The basic configuration includes a base housing (for the switch, cable run, and mounting hardware) and an activation arm.
Mounting can be done using a thumbscrew with a ¼” vertical or horizontal rod or using the T-nut base.
- If mounting to a rod, a thumbscrew is needed to tighten the switch to the rod and an M3 screw is needed to hold the bottom of the compression spring inside the housing.
- If mounting to a ¼”-20 mount, the thumbscrew and M3 are omitted. A T-nut is inserted into the base, which snaps onto the bottom of the housing.
Amazon Basics PLA
Gold & Blue
Electronics and associated hardware
Hardware for the arm
- One compression spring (0.75 long, 0.18” OD, 0.148” ID, 0.016” wire diameter), https://www.mcmaster.com/9434k23 - NOTE: It may be necessary to trim the spring slightly to ensure that the switch is activated when any position on the arm is depressed. The spring is intended to keep the arm offset from the microswitch and provide only slight spring-back action for the lever switch.
- One low-profile binding barrel and screw, https://www.mcmaster.com/#94887a162
For mounting to a ¼”-20 mount
For mounting to a metal rod